JPH07257542A - Sealed paper tube container - Google Patents

Abstract

PURPOSE:To form a completely-sealed container to improve the air-tightness and prevent goods in the container from deteriorating in quality by a method wherein the upper edge of the side wall of the main body of the container is bent down outward to form a turn-back top rim around an opening of the main body, and a lid is fitted on the turn-back top rim so that the lid comes in face-contact with the outer circumferential face of the turn-back top rim. CONSTITUTION:A container A consists of a main body 1 and a detachable lid 2 to be fitted on an opening of the main body 1. When a commodity such as food, for example, is stored and packaged in the container A, the lid 2 is removed to take out the commodity by a specified amount from the main body 1 through the opening, and then the lid 2 is fitted on the opening of the main body 1. As the main body 1 has a turn-back top rim 6 with a vertical side wall 5 of a specified dimension around the outer circumferential face of the opening of the main body 1, the inner circumferential face of a side wall 9 of the lid 2 comes in face-contact with the outer circumferential face of the turn-back top rim 6, causing the container A to be sealed and kept in a high airtight state. Therefore, the commodity contained is prevented from deteriorating in quality due to a decline in air-tightness.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention is a paper which can form a vertically overlapping edge at the opening of a container body to ensure reliable sealing in a fitted lid state and to provide a highly airtight container. Regarding a sealed container made of pipe.

[0002]

2. Description of the Related Art Conventionally, as shown in FIG. 11, a paper tube container for filling foods or the like has an edge winding portion at one opening of a cylindrical body obtained by cutting a long paper tube into a predetermined size. To form 16,
A rim-wound portion 16 for supporting the lid is formed on the other opening by curling outward while curving the bottom plate 17 in a circular shape having a diameter corresponding to the inner diameter of the cylindrical body. To form a cylindrical container body 19, and the container body 19
The lid 21 having the locking projection 20 formed on the inner circumference of the opening of the peripheral wall
It was the structure which can be fitted in and out freely.

At the time of use, the lid body 2 is pushed from the container body 19.
1 is removed to accommodate food items such as food in a predetermined manner, and then the lid 21 is fitted into the opening of the container body 19 and the locking projection 20 formed on the inner periphery of the lid 21 is wound around the lid to lock the lid. The lid 21 was engaged with the portion 18 so as to be fitted thereto.

[0004]

However, in the conventional paper tube-made container described above, the locking projection 20 formed on the lid 21 at the time of fitting the lid.
To the edge winding portion 16 of the container body 19 by the lid 2
Although 1 can be stopped, since the above-mentioned locking does not occur due to the line contact of the locking projection 20 with the edge winding portion 18, it is not possible to completely seal the container, and therefore the airtightness is also poor. In addition, since the container is made of a paper tube, the locking projection 20 cannot be easily formed, and it is not possible to obtain a container having a high sealing property. Also, the container body 19
Even when an inner seal is attached to the opening of the inner seal, since the peripheral edge of the inner seal is formed into a curl shape in accordance with the curled rim winding portion 18 and is attached, it is troublesome and difficult to attach. I couldn't expect a good seal.

The present invention has been made in order to solve the above-mentioned conventional problems. The object of the present invention is to fold the opening of the container main body outward and to make the peripheral wall of the folded edge vertical. In order to provide a sealed container made of a paper tube, which is capable of forming a complete sealed container by surrounding the peripheral wall of the lid body when the fitting lid is fitted and forming a complete sealed container. Is.

[0006]

Means for Solving the Problems A means for a paper tube-made sealed container according to the present invention for achieving the above object is to provide a bottom plate on one opening of a paper tube cylindrical body and to open the other opening of the container body. In a paper tube sealed container in which a lid is removably fitted on the side of the container, a stacking edge is provided at the other opening of the container body by folding back outward and surrounding a peripheral wall of the folding edge in a vertical shape. . Further, the present invention, when the lid body is fitted to the lap edge of the container main body by circumferential contact, and when the folded end side of the lap edge is bent outward, the lid body is made vertical by the lid body. When the lid can be tightly fitted, when the folded edge of the overlapping edge is bent inward, and when the lid is fitted, the lid is made vertical so that the lid can be tightly fitted. The edge side of the edge is folded back further upward to form an outer folded portion, and when the lower end of the lid is supported by this outer folded portion, the inner seal is brought into circumferential contact with the upper wall of the container body or the peripheral wall of the overlapping edge. In some cases, it may be attached.

[0007]

When the paper tube-sealed container according to the present invention is used to store and hermetically package a product such as food, after the food is used through the opening of the container body with the lid removed, A lid is fitted in the opening. At this time, the opening of the container body is provided with a folded edge having a predetermined size on the outside and a peripheral edge of which is a vertical stack edge. The inside of the peripheral wall of the body is in close contact with the vertical overlapping edge by being in contact with the peripheral surface, and in a sealed state, high airtightness is maintained and it is possible to prevent the quality deterioration of the stored product due to the decrease in airtightness.

Further, according to the present invention, the paper tube which allows the folded end side of the overlapping edge formed on the container body to be bent outward to make the lid vertical so that the lid can be tightly fitted. In the case of a sealed container, when the fitting lid is fitted, the warped overlapping edge is brought into close contact with the lid body so that the lid body is in a tightly fitted state and the sealing effect can be greatly enhanced.

Further, according to the present invention, when the folded end side of the overlapping edge of the container body is inwardly warped and fitted with the lid, the lid is made vertical so that the lid can be tightly fitted. Also in the case, in the same manner as described above, when the lid is fitted, the tightly fitted state of the lid can be obtained by the close contact of the warped overlapping edge with the lid, and the sealing effect can be enhanced.

Furthermore, in the case of a paper tube sealed container in which the end side of the overlapping edge is further folded back to form an outer folded portion, and the lower end of the lid is supported by this outer folded portion, the paper tube sealed container is fitted. The inside of the peripheral wall of the lid comes into close contact with the vertical overlapping edge by contacting the peripheral surface, and the lower end of the peripheral wall of the lid is supported by the outer folded portion, so that a tightly sealed state is maintained and high airtightness is maintained. Prevent the deterioration of the quality of the stored products due to the deterioration of airtightness.

Further, according to the present invention, when the inner seal is stuck and sealed in the opening of the container body, the inner seal is directly brought into surface contact with the upper peripheral surface of the container body by forming the overlapping edge or the peripheral wall of the overlapping edge. The adhesive area is widened to enhance the sealing effect.

[0012]

EXAMPLE Next, an example of a paper tube-made sealing container according to the present invention will be described with reference to the drawings. FIG. 1 shows a front view of a container with a part cut longitudinally, and FIG. 2 shows a state before a fitting lid. In the explanatory diagram shown,
The container A is composed of a container body 1 and a lid body 2 which is fitted into the opening of the container body so as to be freely inserted into and removed from the container body 1. The container body 1 is a cylindrical body obtained by cutting a long paper tube having a predetermined diameter into a certain size. A rim winding portion 3 is formed at one opening end of the container, a circular, menco-shaped bottom plate 4 is fitted and supported on the rim winding portion 3 to form a container body 1, and the other opening portion is once folded back to the outside. A peripheral edge 5 having a vertical shape on the peripheral wall 5 of the folded edge is provided around the peripheral edge, and the lid body 2 is brought into circumferential contact with the overlapping edge 6 of the container body 1 to be fitted therein. Also, FIG.
As shown in FIG. 3, the overlapping edge 6 may be formed longer than the lid body 2 to reinforce the opening of the container body 1 to form a robust container A.

Further, the lid body 2 cuts a paper tube having a diameter slightly larger than the diameter of the container body 1 into a sliced shape, and forms an edge winding portion 7 on one side thereof, and the edge winding portion 7 has a circular shape. -Shaped top plate 8 is fitted and supported, and the container body 1 is attached to the lower end of the peripheral wall 9.
A locking edge 10 that stops at the lower end of the overlapping edge 6 is formed. As shown in FIG. 3 and the subsequent figures, the lid 2 may be one in which the top portion and the peripheral wall portion are integrally formed. In this case, the lid 2 is integrally molded with a synthetic resin such as plastic to improve the appearance. Can be manufactured at low cost. Further, as shown in FIG. 4, the peripheral wall 9 may be formed longer than the overlapping edge 6 to form the lid body 2 having a depth. At this time, the overlapping edge 6 may be elongated in accordance with the lid body 2.

Using the paper tube-made sealing container according to the present embodiment,
For example, when a product such as food is to be contained and hermetically packaged, a predetermined amount of product is used from the opening of the container body 1 with the lid 2 removed, and then the lid 2 is directly attached to the opening of the container body 1. At this time, a lap edge 6 having a predetermined size and formed of a folded edge and having a vertical peripheral wall 5 is provided around the outside of the opening of the container body 1. 9 The inner surface is in contact with the vertical overlapping edge 6 by closely contacting with the peripheral surface, and in a sealed state, high airtightness is maintained, and it is possible to prevent quality deterioration and deterioration of stored products due to the decrease in airtightness. it can.

Next, another embodiment of the present invention will be described with reference to FIG. 3. In this embodiment, when the folded end side of the overlapping edge 6'is bent outward, the cover body 2'is used for fitting. The lid 2'is made to be vertical so that the lid 2'can be tightly fitted, and a folded piece 11 is formed by bending the lower end of the peripheral wall 9'in the lid 2'inward to form a folded piece 11. The end of the folded-back piece 11 is locked to the end of the curved edge 6'to enable the container to be sealed and the lid 2'to be securely fitted. In addition, as shown in FIG. 7, the end of the folded piece 11 may be fitted between the overlapping edge 6'and the peripheral wall of the container body 1'to make the lid 2'sealing stronger.

Another embodiment of the present invention will be described with reference to FIG. 5. In this embodiment, the end portion side of the overlapping edge 6a of the container body 1a is further folded upward to form the outer folded portion 12. When the lid is fitted into the outer folded portion 12, the lower end of the peripheral wall 9a of the lid 2a is supported.
When the lid body 2a is fitted to a, the peripheral wall 9a of the lid body 2a makes circumferential contact with the peripheral wall 5a of the overlapping edge 9a, and the lower end of the lid body 2a abuts on the upper end of the outer folded portion 12 to provide high airtightness. The fitting lid state can be obtained.

Further, another embodiment of the present invention will be described with reference to FIG. 10. In this embodiment, when the folded end side of the overlapping edge 6b of the container body 1b is bent inward, the lid is closed. The lid 2b is made vertical to enable close fitting of the lid 2b. In this case also, the peripheral wall 9 of the lid 2b is formed.
A folded-back piece 11 'is formed by bending the lower end of b inward, and at the time of a fitting lid, the end of this folded-back piece 11' is locked to the end of the curved edge 6b to seal the container. Lid 2b
The secure mating of

In the present invention, as shown in FIGS. 8 and 9, when the inner seal 13 is attached to the opening of the container body 1c,
The inner seal 13 is adhered to the upper surface of the open end including the overlapping edge 6c by making surface contact with the inner seal 13 (FIG. 8), or the overlapping edge 6c.
There is a case where the hanging edge 14 of the inner seal 13 folded back along the circumference is brought into circumferential contact with the overlapping edge 6c, and they are integrally attached with the adhesive 15 (FIG. 9). According to this, the bonding area is enlarged as compared with the conventional case where the container body is bonded to the edge winding part, and the sealing effect can be greatly enhanced.

[0019]

As described above, in the paper tube sealed container according to the present invention, the lid body is removably fitted to the other opening side of the container body in which the bottom plate is arranged in one opening of the paper tube cylindrical body. In the sealed container made of paper tube, the container body is characterized in that the other opening portion of the container body is provided with an overlapping edge in which the peripheral wall of the folded edge is vertical and the stacking edge is formed vertically. In the state where the body is fitted, the peripheral wall of the lid comes into peripheral contact with the vertical overlapping edge, so that it is possible to completely seal the container, which was originally impossible with a paper tube container, and the tight fitting is performed. As a result, since the airtightness is also excellent, even if the contents are foods or the like, there is a particular effect that the quality does not deteriorate or deteriorate.

Further, in the paper tube sealed container according to the present invention, the lid body is circumferentially contacted with the overlapping edge of the container main body to be fitted, and the folded end side of the overlapping edge is bent outward to fit the lid. , By making the lid vertical so that the lid can be tightly fitted, when the fitting lid is closed, the tightly fitted state of the lid is ensured by the close contact of the warped overlapping edge with the lid. There is a practical effect that can greatly enhance the effect.

Further, according to the present invention, when the folded end portion side of the overlapping edge is bent inward and the fitting lid is made vertical, the lid body is made vertical so that the lid body can be fitted tightly. Due to the close contact with the lid body, the lid body is brought into a surely tightly fitted state, which is effective in increasing the sealing effect.

Further, according to the present invention, the end side of the overlapping edge is further folded back upward to form an outer folded portion, and the lower end of the lid is supported by this outer folded portion, whereby the lid body to be fitted is The inner surface of the peripheral wall is in close contact with the vertical overlapping edge by contacting the peripheral surface, and the lower end of the peripheral wall of the lid is supported by the outer folded portion, so that the container is securely sealed and maintains high airtightness. There is a practical effect.

Furthermore, according to the present invention, an inner seal is attached to the upper end of the container body or the peripheral wall of the overlapping edge so that the inner surface is in contact with the peripheral surface, the margin area is expanded, the sealing effect is increased, and the container is accommodated when the sealing effect is lowered. There is an effect in implementation that does not affect the quality deterioration and deterioration of foods.

[Brief description of drawings]

FIG. 1 is a partially longitudinal front view showing an embodiment of a paper tube-made sealing container according to the present invention.

FIG. 2 is an explanatory view of a state in which an upper lid is removed.

FIG. 3 is an enlarged cross-sectional view of a main part showing another embodiment of the present invention.

FIG. 4 is an enlarged cross-sectional view of an essential part showing another embodiment of the present invention, in which the lid is deepened.

FIG. 5 is an enlarged cross-sectional view of a main part showing another embodiment of the present invention.

FIG. 6 is an enlarged cross-sectional view of an essential part showing another embodiment of the present invention, in which the overlapping edge is lengthened.

FIG. 7 is an enlarged cross-sectional view of the main part showing an example of the present invention in which the overlapping edge is curved outward.

FIG. 8 is an enlarged cross-sectional view of a main part showing an example in which an inner seal is attached to the upper end of the opening of the container body in the present invention.

FIG. 9 is an enlarged cross-sectional view of essential parts showing an example in which an inner seal is attached to the peripheral wall of the overlapping edge of the container body in the present invention.

FIG. 10 is an enlarged cross-sectional view of a main part in a fitting lid state showing another embodiment of the present invention.

FIG. 11 is a front view in which a part of a conventional paper tube container is longitudinally cut.

[Explanation of symbols]

 1 container body 2 lid 4 bottom plate 5 peripheral wall 6 stacking edge

Claims (6)

[Claims] 1. A paper tube sealed container in which a lid is removably fitted to the other opening side of a container body in which a bottom plate is arranged in one opening of the paper tube cylindrical body, and the other opening portion of the container body. A paper tube-enclosed container, further comprising: a folded edge outwardly, and a peripheral edge of the folded edge, which is a vertical shape. 2. The paper tube-made sealed container according to claim 1, wherein the lid body is fitted into the overlapping edge of the container body by circumferential contact. 3. The cover body according to claim 1, wherein the folded end side of the overlapping edge is bent outward so that the cover body is made vertical so that the cover body can be fitted tightly. Paper tube sealed container. 4. The close fitting of the lid body is possible by vertically bending the folded edge side of the overlapping edge inward by fitting the lid body when the lid is fitted. Paper tube sealed container. 5. The paper tube according to claim 1, wherein the end portion side of the overlapping edge is further folded back to form an outer folded portion, and the lower end of the lid is supported by the outer folded portion. Sealed container. 6. The paper tube sealed container according to claim 1, wherein an inner seal is adhered to the peripheral wall of the upper end or the overlapping edge of the container main body so as to contact the peripheral surface.